Jan ( N = 1517 )

Feb ( N = 1419 )

Mar ( N = 1516 )

Apr ( N = 1315 )

May ( N = 1516 )

Jun ( N = 1468 )

Jul ( N = 1510 )

Aug ( N = 1491 )

Sep ( N = 1438 )

Oct ( N = 1507 )

Nov ( N = 1462 )

Dec ( N = 1515 )